Mechanisms to operate on a downlink wideband carrier in unlicensed band

Abstract

Various embodiments herein provide techniques to operate wideband (WB) cells, and in particular, WB operation for New Radio-Unlicensed (NR-U). The embodiments herein provide more accurate and efficient operation of WB procedures with listen-before-talk (LBT) operation as compared with existing and/or previous solutions. In embodiments, a user equipment (UE) may receive configuration information for a search space set that includes multiple monitoring locations in a frequency domain within a listen-before-talk (LBT) bandwidth part (BWP). The UE may monitor for a physical downlink control channel (PDCCH) on one or more of the monitoring locations

1 . One or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed are to cause a user equipment (UE) to:
 receive configuration information for a search space set that includes multiple monitoring locations in a frequency domain within a listen-before-talk (LBT) bandwidth part (BWP); and   monitor for a physical downlink control channel (PDCCH) on one or more of the monitoring locations.   
     
     
         2 . The one or more NTCRM of  claim 1 , wherein individual monitoring locations are within respective subbands of the LBT BWP. 
     
     
         3 . The one or more NTCRM of  claim 2 , wherein the instructions, when executed, are further to cause the UE to receive an indication of one or more of the subbands that are to be monitored for the PDCCH. 
     
     
         4 . The one or more NTCRM of  claim 3 , wherein the indication is received via radio resource control (RRC) signaling. 
     
     
         5 . The one or more NTCRM of  claim 4 , wherein the indication is included in a monitoringSubband-r16 parameter of a Searchspace information element (IE) in an RRC message. 
     
     
         6 . The one or more NTCRM of  claim 3 , wherein the indication includes a bitmap. 
     
     
         7 . The one or more NTCRM of  claim 6 , wherein individual bits of the bitmap correspond to respective subbands to indicate whether the associated monitoring occasion is to be monitored. 
     
     
         8 . The one or more NTCRM of  claim 6 , wherein individual bits of the bitmap correspond to a number of PRBs that are a unit of a control resource set (CORESET) to indicate a starting point of a CORESET to be monitored. 
     
     
         9 . The one or more NTCRM of  claim 1 , wherein the respective monitoring locations correspond to one or more resource blocks (RBs) in the frequency domain. 
     
     
         10 . The one or more NTCRM of  claim 1 , wherein the monitoring locations correspond to respective control resource sets (CORESETs). 
     
     
         11 . One or more non-transitory computer-readable media (NTCRM) having instructions, stored thereon, that when executed are to cause a next generation NodeB (gNB) to:
 encode, for transmission to a user equipment (UE), configuration information for a search space set that includes multiple monitoring locations in a frequency domain within a listen-before-talk (LBT) bandwidth part (BWP); and   encode a physical downlink control channel (PDCCH) for transmission on one or more of the monitoring locations based on the configuration information.   
     
     
         12 . The one or more NTCRM of  claim 11 , wherein individual monitoring locations are within respective subbands of the LBT BWP. 
     
     
         13 . The one or more NTCRM of  claim 12 , wherein the instructions, when executed, are further to cause the gNB to: encode, for transmission to the UE, an indication of one or more of the subbands that are to be monitored for the PDCCH. 
     
     
         14 . The one or more NTCRM of  claim 13 , wherein the indication is transmitted via radio resource control (RRC) signaling. 
     
     
         15 . The one or more NTCRM of  claim 14 , wherein the indication is included in a monitoringSubband-r16 parameter of a Searchspace information element (IE) in an RRC message. 
     
     
         16 . The one or more NTCRM of  claim 13 , wherein the indication includes a bitmap. 
     
     
         17 . The one or more NTCRM of  claim 16 , wherein individual bits of the bitmap correspond to respective subbands to indicate whether the associated monitoring occasion is to be monitored by the UE. 
     
     
         18 . The one or more NTCRM of  claim 16 , wherein individual bits of the bitmap correspond to a number of PRBs that are a unit of a control resource set (CORESET) to indicate a starting point of a CORESET to be monitored by the UE. 
     
     
         19 . The one or more NTCRM of  claim 11 , wherein the respective monitoring locations correspond to one or more resource blocks (RBs) in the frequency domain. 
     
     
         20 . The one or more NTCRM of  claim 11 , wherein the monitoring locations correspond to respective control resource sets (CORESETs).